Senior Python Systems Developer (Remote, AI Testing)

Job summary

This role is for a Senior Python Systems Developer with extensive experience in functional testing, particularly in AI systems. The position is project-based and fully remote, allowing for flexible participation.

Qualifications

• Over 5 years of experience as a Software Engineer, primarily in Python.
• Proficient in English at a B2 level or higher.
• Deep knowledge of pytest, including fixtures and session-scoped tests.
• Familiarity with agent evaluation platforms and MCP CLI.

Responsibilities

• Develop functional black box tests for large codebases in various programming languages.
• Create and manage Docker environments to ensure reproducible builds and test execution.
• Monitor code coverage and set automated scoring criteria to meet industry standards.
• Utilize LLMs to enhance development cycles and automate repetitive tasks.

Skills

• Expert-level skills in Docker, including creating reproducible Dockerfiles and secure workspaces.
• Strong Linux and Bash scripting abilities, with experience debugging in containerized environments.
• Ability to read and understand multiple programming languages, including C, C++, Rust, and Go.

Tools

What we can offer

• Python (pytest, uv, Pillow), Docker, Bash, Git Submodules, C/C++/Rust/Go, Dagger, GitHub Codespaces, LLMs (Claude Code, Roo Code, Cursor), coverage.py, gcov, kcov.
• Freelance project-based collaboration with flexible hours (20-30 hours per week).
• Competitive compensation based on project scope, with potential earnings up to $50 per hour.